How Much Polirock Binder Is Needed Per m²?

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How Much Polirock Binder Do I Need Per Area?

Accurate measurement of binder is key to the longevity and performance of any permeable stone surface. This quick guide explains how much Polirock binder you’ll need for your project, helping you plan for both cost and consistency.

Calculating Polirock Binder Quantity

For permeable flooring using white stones, Polirock binder should typically make up about 3% of the total stone weight. To cover 1.44 m² at a 20 mm thickness, plan for approximately 13 kg of binder resin alongside 432 kg of aggregate. To estimate your binder requirements:

Weigh your chosen stones
Calculate 3% of the total stone weight
This gives you the amount of Polirock needed

Working Example for Your Project

If you’re preparing a 5 m² surface at 20 mm thick, and your stones total about 1,500 kg, you’ll need roughly 45 kg of Polirock binder (3% of 1,500 kg). Always round up slightly to allow for any on-site adjustments and ensure effective mixing.

Choosing high-quality components such as washed pebbles can also make application easier and result in a more even finish.

When Precision Matters

Getting the resin ratio right is especially important for professional installations, as deviations can affect drainage and surface strength. Stick to recommended proportions to get a stable, permeable result – particularly for driveways, public spaces, or high-traffic footpaths.

Related guides

Which Product Should I Choose For Professional Permeable Surfaces

Accurately estimating Polirock binder ensures reliable, attractive, and permeable surfaces. For more detailed advice and alternative solutions, visit our main guide on choosing products for professional permeable surfaces.